The Walla Walla District Regulatory Office of the U.S. Army Corps of Engineers is responsible for administering the Regulatory Program in the State of Idaho. The Regulatory Branch evaluates permit applications for essentially all work that occurs in “waters of the United States” that are regulated by the Corps, pursuant to Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. All regulated activities occurring within jurisdictional areas require a permit from the Corps.
Examples of areas that may be within the jurisdictional authority of the Corps include marshes, swamps, streams, creeks, rivers, ponds, lakes, seasonally saturated forested and non-forested wetlands.
Examples of activities within jurisdictional areas that require a permit include dredging of waterways, bank stabilization, recreational ponds and lakes, as well as the construction of piers, docks, marinas, fleeting areas, boat ramps, roads, residential and commercial developments, utility lines, and mining activities.